British Rail Class 11
The British Rail Class 11 is a diesel shunting locomotive built from April 1945 to December 1952. They are based on a similar earlier batch built by the London, Midland and Scottish Railway (LMS) between 1934 and 1936.
| British Rail Class 11 | |
| Power type | Diesel-electric |
|---|---|
| Builder | LMS/BR Derby & BR Darlington |
| Build date | 1945–1952 |
| Total production | 120 |
| Configuration | 0-6-0 |
| UIC classification | C |
| Gauge | Lua error in package.lua at line 80: module 'Module:Track gauge/data' not found. |
| Wheel diameter | 4 ft 0+1⁄2 in (1.232 m) |
| Minimum curve | 3.5 chains (70 m) |
| Wheelbase | 11 ft 6 in (3.51 m) |
| Length | 29 ft 1+1⁄2 in (8.88 m) |
| Width | 8 ft 5 in (2.57 m) |
| Height | 12 ft 5+1⁄2 in (3.80 m) |
| Locomotive weight | 47.4 long tons (48.2 t) |
| Fuel capacity | 660 imp gal (3,000 L; 790 US gal) |
| Prime mover | English Electric 6KT |
| Generator | English Electric 801 — 441 A, 430 V |
| Traction motors | English Electric 506, 2 off |
| Cylinders | Straight 6 |
| Transmission | DC generator, DC traction motors, double reduction gearing |
| Multiple working | Not fitted |
| Top speed | 20 mph (32 km/h) |
| Power output | Engine: 350 hp (261 kW) |
| Tractive effort | Maximum: 34,900 lbf (155.2 kN) |
| Train heating | None |
| Locomotive brakeforce | 32.2 long tons-force (321 kN) |
| Train brakes | Vacuum |
| Career | War Department Nederlandse Spoorwegen (NS) London, Midland and Scottish Railway British Railways HNRC heritage railways |
| Number in class | WD: 14 (10 to NS) LMS/BR: 106 |
| Number | WD: 70260–70273 LMS: 7120–7129 BR: 12033–12138 |
| Axle load class | RA 5 |
British Rail Class 11 Media
12099 preserved on the Severn Valley Railway
